1.1 This part of ISO 527 specifies the test conditions for the determination of the tensile properties ofunidirectional fibre-reinforced plastic composites, based upon the general principles given in Part 1.1.2 See ISO 527-1:1993, Subclause 1.2.1.3 The test method is suitable for all polymer matrix systems reinforced with unidirectional fibres and which meet the requirements, including failure mode, set out in this part of ISO 527.The method is suitable for composites with either thermoplastic or thermosetting matrices, includingpreimpregnated materials (prepregs). The reinforcements covered include carbon fibres, glass fibres, aramid fibres and other simil